Horseshoe



FIG. 1 is a bottom plan view of a horseshoe showing my new design; and

FIG. 2 is a cross-sectional view taken on the line 2--2 of FIG. 1;

FIG. 3 is a cross-sectional view taken on the line 3--3 of FIG. 1. 

The ornamental design for a horseshoe, as shown. 